diff --git a/misc/macros.json b/misc/macros.json
index c7ced372b7..3758dd04a7 100644
--- a/misc/macros.json
+++ b/misc/macros.json
@@ -16,6 +16,7 @@
     "past_5m": "DATE_SUB(NOW(),INTERVAL 5 MINUTE)",
     "past_10m": "DATE_SUB(NOW(),INTERVAL 10 MINUTE)",
     "past_15m": "DATE_SUB(NOW(),INTERVAL 15 MINUTE)",
+    "past_20m": "DATE_SUB(NOW(),INTERVAL 20 MINUTE)",
     "past_30m": "DATE_SUB(NOW(),INTERVAL 30 MINUTE)",
     "past_60m": "DATE_SUB(NOW(),INTERVAL 60 MINUTE)",
     "port": "(%ports.deleted = 0 && %ports.ignore = 0 && %ports.disabled = 0)",